Timeline for Can each natural number be represented by $2w^2+x^2+y^2+z^2+xyz$ with $x,y,z\in\mathbb N$?
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 19, 2022 at 7:35 | vote | accept | Zhi-Wei Sun | ||
| Feb 18, 2022 at 2:05 | history | answered | Jeremy Rouse | CC BY-SA 4.0 |